The letter that claimed to speak for "loyal party members" called for President Xi Jinping to step down. The incident is the latest chapter in a heated debate about the limits of free speech in China.
After a suicide bombing ripped through a crowded park on Easter, Pakistan has declared a three-day mourning period. Meanwhile, authorities are trying to track down those responsible for the attack.
Pakistan's security forces have been waging an offensive against the Taliban since 2014 and have diminished the radical Islamist group. Sunday's bombing showed the country remains vulnerable.
A blast believed to have been detonated by a suicide bomber ripped through a park in Lahore, Pakistan, near the children's swings, killing at least 65 people who were enjoying a Sunday off.
A Filipino devotee was nailed to a cross for the 30th time in an annual Good Friday ritual, which he dedicated to peace in Belgium and other countries targeted by Islamic extremists.
Scientists now have evidence the Zika virus was spreading in South America long before health officials detected it. The findings suggest Zika could be hiding out in other corners of the world, and Southeast Asia may be the next region to see a big outbreak.
In the developing world, women who want to space pregnancies can't always obtain birth control. A new insertion device for an IUD, post-childbirth, is being tested with promising results.
It's a spring religious festival in India. People spatter each other with colored powder and spray lots of water. This year's drought is changing the tradition — to the dismay of many.